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护栏和护墙在公路设计中虽然占的比例很小,但却是一项不可缺少的配套工程,在公路交通中起着重要的作用。因其结构简单,往往在设计中不易引起重视。对所采用的柱式护栏和矩形护墙很少考虑公路美学与景观,亦少从防护效果着想。柱式护栏与矩形护墙比较:前者占路基窄,造价低,视觉轻盈明快,但只起诱导作用;后者占用路基宽,造价高,给人以沉重窄憋之感,特别是两侧设置的路段,视觉更窄,易增加旅客的紧张心理感。但护墙除起诱导作用外,还兼起防止汽车出线的作用,
Fence and retaining wall in the road design, although a small proportion, but it is an indispensable supporting works in the road traffic plays an important role. Because of its simple structure, it is often not easy to pay attention to the design. Adopted the column fence and rectangular retaining wall seldom consider road aesthetics and landscape, but also from the protective effect of the sake of less. Column fence and rectangular retaining wall comparison: The former accounted for narrow subgrade, low cost, light and light vision, but only from the induction; the latter occupied the roadbed wide, high cost, giving a sense of heavy narrow hold, especially on both sides set Of the road, the vision is more narrow, easy to increase the sense of tension of passengers. However, in addition to the role of retaining wall induction, but also together prevent the car qualify,